Certificate of correction



Feb. 9, 1960 H. ANGEL ETAL X-RAY APPARATUS Filed Aug. 12, 1958 I v -2 924,716 1 ix-nararrsnarus 1 a Hnr'aldAii'gel and Johann Christi-Vienna, Austria, assignors-to Elin Aktieugesellschaft fiir elektrische Indusn trie, Yienua,. Austria, an Austrian corporation t I Application August '12; 1958, Serial No. 754,614 Y Claims priority, application-Austria August 12, 1957 invention relates to X-ray examination apparatus j and is particularly'eoncerned with an equipment allowing to use only oneYsin'gIeXX-Iay tube in positions both alir' ye and belowthe examination table. fItis the chief object of our invention to apply a conpling 'dev ice attached to theassembly consisting of the 'tubehousing'and the tube shutter. u f c'ouplingdevice consists of a housing having two "c lutch shifters, 'o ieforcoupling with the tube support of the tube" stand, :the" other for coupling with the spot device which isj infawel l known manner attached to a carriage; In thiscoiipling device there are provided Ialjso"remote-controlledcontacts serving for the release ""of'" the "coupling and decouplingprocess and moreover aposition ahov'e'tlie examination table'and the other is used'in a position'below' the examination table. j A further object of the-inventionis to apply 'acontrol mechanism controlling that always one of both cou- Another object" of the, invention is to effect the cou- U ited st t s t n 1 pling proceSs in speciaI position of {the spot film device i -R Q t b Pp0 t, preferably the coupling .ptp may be ected, aft r 156 b chhas been brought ai micalpositio a T Acco'rdihg 'to another object er the inventionboth the tube fsupport thespot film device'are blocked in their;move ment-during .the coupling process, whereas afterwardsfonly the decoupled element remains blocked. smovementblockflg may be executed in a well known manner'as a'selfilocking one, The clutch ousii 'g' contains the elements serving for the coupling mechanism eonsistingfof two clutch dogs fone for the tube support; the other for the spot film dev ce; springs and otherjelementsand contains also the emerit s;[servingv fo release mechanism consisting of we coupling mag s, j with g their" armature bolts and armature"springs, one of said magnets being provided I a for the tuhe support, the otherfor the spot film device.

,The cliitchhousinghas alsloa retainer-element for hold- ,x-ingthe assembly consisting of the tube housing and the multaneous release of both coupling magnets. v 7 case 'of demounting of the whole coupling device thereis parts being fiiied at'th'e tube support, the other part fixed to the spot film device. 'The coupling process is" effected by means of pressure springswhich ja're guided in spring barrels. During the clutching operation, the working clutch'dog is turned around a bolt guided in 'a slotted hole, causing the corresponding armature bolt pressed by the armature spring to spring in a corresponding bore hole in the clutch dog, serving now as pivot for the moving of the clutch dog;

According to another object of the invention the clutch dog which isfirst brought into engagement with its corresponding clutch pawl (of the tube support or the spot film device) has to be undetachable by the release mechanism normally acting in the jcou'pling device. Namely vit is one object' of our invention'thatthe contact surfaces of the cooperating elements of the clutch dog' and vthe clutch pawl act one upon the other asinclined planes and therefore the clutch dog is pressed against the clutch pawl with a great action of force. Therefore the b'ea'ring pressure of thearmature bolt in its bore hole in the clutch dog increases to t such an extent that the initial power of the coupling magnet will not suflice to draw vout the armature you; The drawing out of said bolt can only be'oper'ated by hand or by a special tool applying a greatlforceas' it is usual when demounting the apparatus. I

I When oneolutching part p,e. that of the tube support has been coupled with the clutch housing and the second clutching part p.e. that ofithe spot'film device has thento be coupled with the clutch housing, two feelers, each of saidfeelers being attached to itsclutching part, serve to ascertain by feeling the coupling position. Ac-

" cording to another. object, these feelers serve otherwise to decrease. the'bearin'g pressure of the armature bolts in their bore holes by removing the clutch dogs by means of pivotedlevers." v

Therefore the armature bolts can be removed by the initial powerofthe coupling magnets.

Referring 'to another object of the invention, there are provided safety interrupting contacts inthe clutchhousing, serving to prevent me well ,known manner the si- In the provided a handle which can beactuated by hand or byaspecialtool. 1

The foregoing andnumcrous other important objects, advantages and inherent functions of the invention will become apparent as the same is'more fully understood from the followin'g description, which, taken in connection with the greed panying drawings, discloses a preferred embodimentof the invention. 1

Referring to the'drawingsr l a g Figure 1 is a principal manufacture of the whole coupling device in schematic manner.

Figure lis a sectional view on the lines 2'2 of Figure 1. ,4

The clutch housing [has a retainer element 2 for holding the assembly consisting of the tube housing and the tube shutter (not shown). This housing has the coupling part B which cooperates with the coupling p'art nets 3, the armature bolts 8, the armature springs 9,

the clutch dogs 6 moving around the bolts 7 which are guided in slotted holes. There are also the pressure springs 11 guided in spring barrels 10, which springs are adjustable by screws 12. 'Ifihe handle 13 is provided for demounting the whole coupling device. The coupling pal-ts C and-D contain theclutch pawls 5,-the feelers-4 and the'levers 14. By means of the feelers 4 the levers "14 move the coupling pawls 5 which'are supported elastically and in their turn bear upon the clutch dog 6. At-the coupling gpart E there are. also. provided safety eoritact's"15 w'hichfprevent the simultaneous release of thebothcoupling'magnets..

In the 'followingthe method ofoperation of'the device according to the invention isexplained by way of example by desc'tibingthe sequence of operativesteps: When the clutch part E is coupled with the clutch part D of the spot film dev'ice,.as is illustrated insFigure 2, this coupling position'is not releasable by means'of the release mechanism embodied by the coupling magnets Sandfitted into the coupling device. 'Thisundetachability is caused by the great "bearing pressure of the respective armature bolt SL'Of the coupling magnets '53 in its bore hole in the clutch dog 6 as already described above. When .the coupling part B will become coupled with the coupling part Got .the' tube support, the feeler 4 determines the coupling position. While the two coupling parts E and ID will approach one another the clutching pawl 'Sstr'ike sagainSt the clutch dog 6 and the latter ;is turned around 'thebolt 7 guidedjin a slotted hole. In this moment the ar'maturebolt 8 actuated by the armature spring willispringiniits corresponding bore fholein the clutch dog i6. "Thef bolt S'serves now as a pivot for the clutchfdog 6; During this coupling process the clutch dog f6fis pressed against the clutching pawl 5"b'y means of the compressing spring 11 guided in .a spring barrel 10. The length of the spring '11 is adjustable by the adjusting screw 12. Duringthe coupling of the coupling partC withthe assembly consisting of the coupled parts E and D',the feelers 4. which are adjustable' in their length, move by means of the pivoted levers "14 the cIntChpaWls 5 ;in ,such a manner that by their action on the clutch dogs 6-theflbearing pressure on both armature bolts'8 decreases considerably. The initial power of the coupling -magnets 3 will thus overcome the small bearing pressure developed "by. the pressure spring 11. After release of one of thetwo coupling magnets; the coupling part B can be 'easilyjdrawn out ofthe corresponding"couplingfpart, whilethe clutch dog.6 turns around the'bjoltfl and the pressure spring 11 exerts only a smallpcounteracting force. In the case of a faulty connection a simultaneous releasing of .both clutchingmagnets 3fis prevented .by additional. safety interrupting contacts 15. The described sequence of couplingis symmetrically reversible.

What is claimed is:

'1. 'X-ray apparatus comprisinga single X-ray tube serving for use both above and below an 'X-ray examination table, a coupling device having attached an assenibly consisting of thertubehousingof said X-ray tube and of the tube shutter, said coupling .device having coupling means to couple said -assembly either to a tube supportattached to'a tube standior to a .spot film device fitted on a carriage, said coupling means consisting of two clutch shifters, Jsaid'tube support and said;

spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device, controlling means consisting'of remote-controlled contacts -:for [the release of the coupling and decoupling processes, remote-controlled contacts serving for reciprocal interlocking of the several ,cou- 'plingpositions and.;safety interrupting contacts preventing the simultaneous release of both the coupling parts.

'2. An X-rayapparatuscomprising-a single'X-ray tube serving for use both above-and below an X-ray exami-,

nation table, a coupling device havingattached an assembly consisting of" the tube housing of'said 'X-ray tube and of the tube shutter, said coupling device having coupIing-means to couple" said assembly either to a' tube supzport attached' to a'tube stand or to a spot film device-fit- ".tedvon a carriage, -said tube support being decoupled z'fof itlte coupling I device in ease of *radiographybelow' the ,p ns mean .t .co p

other.

servin f use both above and 'inationtable, ,aflcoupling ,devicef h oupling means ,to was fitted on a c r ia e.

v g otltwo c ut h. Shiit l i e .o engagi wit se ving fo us ,bo sh X-ray examination table and being then driven out without tube "while the coupling "device "has to "become "coupled with the spot film device.

3. An X-ray apparatus comprising a single X-ray tube serving for use both above and below an X-ray examination table, a coupling .dew'cehaving attached an assembly consisting of the .tn be housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to o ple Sa 'aSsembIY-ei h t tube t unam attached to a .tube .stand or .to .a .spot film ldevice fitted on a carriage, said coupling meansvconsisting oftwo clutch shifters, said tube support andsaid spot film device having each corresponding coupling partscapable of engaging with said .clutchushifters ,onsaidscoupling device, said coupling device having blocking means securing that one coupling position is occupied.

4. An X-ray apparatus comprising a single X-ray tube se vi g o use both bus n elow .anXney exa nation table. a coupling. device having attach it .s mbly cons s in of t e ub h le ns and of the tube shutter, .saidcoupliriggde ,sa j ib y-s th at ached ;t .1 tl and o 4 ,4 5 0t m de on a carriage, said coupling.

18 couples! with .on o the corre pondingl euuli. of the t be .Supportp of the spot film device 'yivh'en' ziidfttibe support and said pot film a e o lllt ip speci rr tite v1 5. An'X-ray apparatus comp Sin a" sem y consis in .o h .ti be' an f h t be .h. s

.s pmrta mhedt a eLstan 0 t I dfco twolutche hifters. sa dtli device havi g each 1TPQD s..,co.up1"., rt pa le of en ging .with-sai 's l er ;nl a F011" plies d vi sa d .tu evsunn r r pot .fi l evic 'bmg mechani ally ih o ieidv in ..the .mst ems 1ri1!s uPl heprmessesa 5. ,An JX-rey apparatus comprisin ,a .Sinsle say tu'be serving for usebo'th' above and bel ami ation bl c9qp1ins new s mbly-. on i t ng aq .1 she u a nd L i the tub shutter, sad-statin vi e a ing co plin rm an fltp ficouples i a$mblv .,eith r to a 'tube support attached to a tube stand orjto a-spotxfilm i e-fittedpna ca ies aidsguplin 1 9 Qu pli g ce each l g a.

of said tube support orpf v cupied, h ving ana i able't e .AniX-rayr pparatus inat on tabl a new ine-devi semblyconsisting oflth e tnbefho n o l tu shutte s up n ean 'to np sa support attached to-atube gstand orjto asp fitted on a carriage, said coupling'means :consisting of two elutchshifters, said tube'-support"an@d said spot film device having-each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device comprisingin combination coupling elements-serving for the coupling meebanism and frekas'ing elements s v g o '"th ease mechan m. 5 *i qtai i t eme earn inn @Swmbly consisting of the -tube housing and the tube shifter, and a handle serving for demounting being operated by hand or by a special tool.

8. An X-ray apparatus comprising a single X-ray tube serving for use both above and below an X-ray examination table, a coupling device having attached an assembly consisting of the tube housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to couple said assembly either to a tube support attached to a tube stand or to a spot film device fitted on a carriage, said coupling means consisting of two clutch shifters, said tube support and said spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device comprising in combination coupling elements serving for the coupling mechanism, releasing elements serving for the release mechanism, said coupling elements comprising two clutch dogs, one of said clutch dogs being provided for coupling with the tube support, the other being provided for the spot film device, each of said clutch dogs first being pivoted around a bolt during coupling, said bolts guided in slotted holes, and having a further bore hole serving for an armature bolt now serving as a pivot when coupled, two pressure springs guided in spring barrels and adjustable by screws, each of said pressure springs bearing upon one of the clutch dogs in its coupled position.

9. An X-ray apparatus comprising'a single X-ray tube serving for use both above and below an X-ray examination table, a coupling device having attached an assembly consisting of the tube housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to couple said assembly either to a tube support attached to a tube stand or to a spot film device fitted on a carriage, said coupling means consisting of two clutch shifters, said tube support and said spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device comprising in combination coupling elements serving for the coupling mechanism and release elements serving for the release mechanism, said release mechanism comprising two coupling magnets one being provided for the tube support, the other being provided for the spot film device, each of the coupling magnets having an armature bolt and each of said armature bolts having its armature spring, each of said armature springs serving to press its armature bolt into the bore hole in its corresponding clutch dog, when said clutch dog is turned around its bolt during coupling.

10. An X-ray apparatus comprising a single X-ray tube serving for use both above and below an X-ray examination table, a coupling device having attached an assembly consisting of the tube housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to couple said assembly either to a tube support attached to a tube stand or to a spot device fitted on a carriage, said coupling means consisting of two clutch shifters, said tube support and said spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device, each of said corresponding coupling parts of the tube support and of the spot film device comprising in combination an elastically supported clutch pawl cooperating with the corresponding clutch dog of the coupling device, a feeler for ascertaining the coupling position, said feeler being adjustable in its length by adjusting screws, a lever being pivoted on a bolt, said lever cooperating with said feeler and serving to bear upon the elastically supported clutch pawl to enable said clutch pawl to act on the corresponding clutch dog of the coupling device in such a manner as to cause decreasing of the bearing pressure on both armature bolts in their bore holes in said clutch dogs when one coupling part of the tube support or the spot film device being coupled and the other having to become coupled.

11. An X-ray apparatus comprising a single X-ray tube serving for use both above and below an X-ray examination table, a coupling device having attached an assembly consisting of the tube housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to couple said assembly either to a tube support attached to a tube stand or to a spot film device fitted on a carriage, said coupling means consisting of two clutch shifters, said tube support and said spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device, in case of coupling only one of the corresponding coupling parts of the tube support or of the spot film device, the bearing pressure of the armature bolt in its bore hole in the clutch dog being unsuperable by the initial power of the coupling magnet thereby causing the coupling position to become indetachable by means of the normally acting release elements.

12. An X-ray apparatus comprising a single X-ray tube serving for use both above and below an X-ray examination table, a coupling device having attached an assembly consisting of the tube housing of said X-ray tube and of the tube shutter, said coupling device having coupling means to couple said assembly either to a tube support attached to a tube stand or to a spot film device fitted on a carriage, said coupling means consisting of two clutch shifters, said tube support and said spot film device having each corresponding coupling parts capable of engaging with said clutch shifters on said coupling device, when one coupling part of said coupling device being coupled and the other to become coupled, two coupling parts in said coupling device, a feeler in each coupling part, each of said both feelers in the coupling parts of the tube support and the spot film device being in cooperation with its lever, said levers bearing upon the elastically pivoted clutch pawls to cause by means of said clutch pawls decreasing of the bearing pressure of the armature bolts in their bore holes in the corresponding clutch dogs, enabling now one or the other of said armature bolts to become released by the initial power of its corresponding coupling magnet so as to decouple the coupled coupling part and to couple the other coupling part.

References Cited in the file of this patent UNITED STATES PATENTS Raab Feb. 13, 1940 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent Nma 2v 924 7l6 February 9 1960 Harald Angel et a1.

It is hereby certified that error appears in the printed specification of'the above numbered patent requiring correction and that the said Letters Patent should read as corrected below. 7

Column 5 line 1 for "shifter" read Shutter Signed and sealed this 23rd day of August 1960.

(SEAL) Attest:

KARL H. AXLINE ROBERT c. WATSON Attesting Oflicer Commissioner of Patents 

